<?php
include_once(_PS_ROOT_DIR_.'/modules/ant_support/Question.php');
class Section
{
    public $id;
    public $id_section;
    public $status = 0;
    public $position = 0;
    public $title = array();
    public $description = array();
    public $versions = array();
    
    public function __construct($id=NULL)
    {
        if($id !== NULL) {
            $section = Section::getSection($id);
            if($section) {
                $this->id          = $id;
                $this->id_section  = $section['id_section'];
                $this->status      = $section['status'];
                $this->position    = $section['position'];
                $this->title       = $section['title'];
                $this->description = $section['description'];
                /*$this->versions = $section['versions'];*/
            }
        }
    }

    public static function getSection($id) {
        if(!($s = Db::getInstance()->ExecuteS('
            SELECT *
            FROM `'._DB_PREFIX_.'support_section`
            WHERE `id_section` = '.(int) $id
        )) || count($s) == 0) {
            return false;
        }

        $result = array(
            'id_section' => $s[0]['id_section'],
            'status' => $s[0]['status'],
            'position' => $s[0]['position'],
            'title' => array(),
            'description' => array(),
        );

        $sl = Db::getInstance()->ExecuteS('
            SELECT *
            FROM `'._DB_PREFIX_.'support_section_lang`
            WHERE `id_section` = '.(int) $id
        );
        foreach($sl as $l) {
            $result['description'][$l['id_lang']] = $l['description'];
            $result['title'][$l['id_lang']] = $l['title'];
        }

        /*foreach(Db::getInstance()->ExecuteS('
            SELECT `version`
            FROM `'._DB_PREFIX_.'support_section_site_version`
            WHERE `id_section` = '.(int) $id
        ) as $version) {
            $result['versions'][] = $version['version'];
        }*/

        return $result;
    }

    public static function getSections($status=null, $lite=false, $order_by='`position` ASC', $limit=null) {
        global $cookie;
        $result = array();
        $where = array();

        $query = '
            SELECT ss.`id_section`
            FROM `'._DB_PREFIX_.'support_section` ss
        ';

        $status !== null? $where[] = '`status` = '.(int) $status: true;
        !empty($where)? $query .= 'WHERE '.implode(' AND ', $where):$query;
        $query .= ' ORDER BY '.$order_by;

        if($limit !== null) {
            $query .= ' LIMIT '.$limit;
        }
        if($sections = Db::getInstance()->ExecuteS($query)) {
            if ($lite) {
                foreach($sections AS $section) {
                    $result[] = $section['id_section'];
                }
            } else {
                foreach($sections AS $section) {
                    $result[] = new Section($section['id_section']);
                }
            }
        }
        return $result;
    }

    public static function getCompleteSections($status=null,$order_by='`position` ASC') {
        $result = array();
        $sections = self::getSections($status, $lite=false, $order_by);
        if (!empty($sections)) {
            foreach($sections AS $section) {
                $result[$section->id_section] = array(
                    'section' => new Section($section->id_section),
                    'questions' => array()
                );

                $questions = Question::getQuestionsByIdSection($section->id_section);
                if (!empty($questions)) {
                    $result[$section->id_section]['questions'] = $questions;
                }
            }
        }
        return $result;
    }

    public function save() {
        if($this->id !== null) {
            Db::getInstance()->Execute('
                UPDATE `'._DB_PREFIX_.'support_section` SET
                    `status` = '.(int) $this->status.'
                WHERE `id_section` = '.(int) $this->id.'
            ');

            Db::getInstance()->Execute('DELETE FROM `'._DB_PREFIX_.'support_section_lang` WHERE `id_section` = '.(int) $this->id);
            $section_i18n = array();
            foreach($this->title as $k => $v) {
                if(!isset($section_i18n[$k])) {
                    $section_i18n[$k] = array();
                }
                $section_i18n[$k]['title'] = $v;
            }
            foreach($this->description as $k => $v) {
                if(!isset($section_i18n[$k])) {
                    $section_i18n[$k] = array();
                }
                $section_i18n[$k]['description'] = $v;
            }
            foreach($section_i18n as $lang => $values) {
                Db::getInstance()->Execute('
                    INSERT INTO `'._DB_PREFIX_.'support_section_lang` VALUES (
                        '.$this->id.',
                        '.$lang.',
                        "'.(isset($values['title'])? pSQL($values['title']): '').'",
                        "'.(isset($values['description'])? pSQL($values['description'], true): '').'"
                    )
                ');
            }

        } else {

            $sql_position = 'SELECT MAX(position) FROM '. _DB_PREFIX_.'support_section';
            $position = Db::getInstance()->getValue($sql_position);

            Db::getInstance()->Execute('
                INSERT INTO `'._DB_PREFIX_.'support_section` VALUES (
                    DEFAULT,
                    '.(int) $this->status.',
                    '.($position+1).'
                )
            ');
            $this->id = Db::getInstance()->Insert_ID();

            Db::getInstance()->Execute('DELETE FROM `'._DB_PREFIX_.'support_section_lang` WHERE `id_section` = '.(int) $this->id);
            $section_i18n = array();
            foreach($this->title as $k => $v) {
                if(!isset($section_i18n[$k])) {
                    $section_i18n[$k] = array();
                }
                $section_i18n[$k]['title'] = $v;
            }
            foreach($this->description as $k => $v) {
                if(!isset($section_i18n[$k])) {
                    $section_i18n[$k] = array();
                }
                $section_i18n[$k]['description'] = $v;
            }
            foreach($section_i18n as $lang => $values) {
                Db::getInstance()->Execute('
                    INSERT INTO `'._DB_PREFIX_.'support_section_lang` VALUES (
                        '.$this->id.',
                        '.$lang.',
                        "'.(isset($values['title'])? pSQL($values['title']): '').'",
                        "'.(isset($values['description'])? pSQL($values['description'], true): '').'"
                    )
                ');
            }
        }
    }

    public static function deleteSection($id) {
        if($section = Section::getSection($id)) {
            Db::getInstance()->Execute('DELETE FROM `'._DB_PREFIX_.'support_section_lang` WHERE `id_section` = '.(int) $id);
            Db::getInstance()->Execute('DELETE FROM `'._DB_PREFIX_.'support_section` WHERE `id_section` = '.(int) $id);
            Db::getInstance()->Execute('DELETE FROM `'._DB_PREFIX_.'support_question` WHERE `id_section` = '.(int) $id);
            
            $question_ids = Question::getQuestionIdsByIdSection($id);
            foreach ($question_ids as $key => $id_question) {
                Db::getInstance()->Execute('DELETE FROM `'._DB_PREFIX_.'support_question_lang` WHERE `id_question` = '.(int) $id_question);
            }
        }
    }
}